Part of me feels that the concepts in this drama are too vague or too literary and it needs better writing and characterization to bring out all the dimensions.
Zara feels like a villain. She is selfish and vain. She is bothered that Emaan gets attention. She wants Taimoor but does not know how to really build a relationship with him. In many ways, their relationship feels very transactional. It does not feel like a deep relationship. She also has no affection or care for her brother. Instead, he is needed as long as he is an asset. 
So in some ways, can see why Taimoor is falling for Emaan who is true to herself. She does not play games and is not afraid of him. For the first time, someone tells him off and does it to his face. 
Laila and Bilal are the most interesting characters of the lot and their dynamic is really interesting because it cannot be easily defined. Laila feels guilty and has always been aware that her parents are screwing him over. She was always aware that they are stealing from him and making him helpless. So she swings between anger at her parents and anger at him. 
Her shame and sharp tongue means that she does not want to be married to him. Her father got her married to Bilal in order to steal the property -- the knowledge of that shame means she can never really accept Bilal. She showed her father the mirror and he died. That anger and grief will now turn on Bilal. It is easier to put him down than to accept that her words had such an impact. So it is misguided emotions. 
In some ways, can see how this relationship can never be between the two of them. It is because of the parents and Zara. There is no way to undo the past and neither Bilal or Laila are the type to just forget the past and pretend nothing happened. 
That said, Emaan Bilal pairing still feels odd because Emaan seems randomly plonked there. If this was a kdrama, I would assume that since Ahaad is not in the poster, he will die in the hands of Taimoor. Then, Emaan will seek revenge on Taimoor..... 
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